IMO, Water Pump, models:

*G3D-187	Instruction Manual
3215/525	Instruction Manual And Parts List
ACE3 Series	Operating Manual
ACF5	Original Operating Manual
CIRCOR BK6DHZ(C)-250	Product Service Manual
CIRCOR GLH8L-400 Series	Instruction Manual And Parts List
CIRCOR OptiLine ACE4	Original Operating Manual
D4	Maintenance And Service Instructions
OptiLine ACG8	Original Operating Manual
OptiLine LPE4	Original Operating Manual